A small child is somehow the only human who can pilot a podracer, no problem. The same child somehow is ably to fly a combat mission and destroy an entire base ship, no problem. Luke also becomes a combat pilot with no combat training, no problem. Rey pilots the Millennium Falcon through the interior of a ship that she has been scavenging throughout for years and all of a sudden that is impossible.
Somehow it’s a problem when Rey, who has spent her entire young adult life literally fighting for survival with a melee weapon is able to defeat Kylo, who himself has incomplete training and is emotionally disturbed having just killed his own father and has also been shot by Chewbacca’s bowcaster, a weapon that has been shown to send stormtroopers flying.
Rey was able to do a mind trick without even seeing it done or being trained regarding it, but she did experience Kylo reading her thoughts, so she isn’t entirely unfamiliar with the idea of manipulating with someone’s mind.
I don’t see that Rey does anything out of the ordinary. She is a pretty awesome character and I can;t wait to see what happens to her, Finn, Poe, and Kylo in the next one.